In recent weeks, weather warnings have been issued across North China. Along with fog and light air pollution, the annual battle against smog has officially begun. It's time to bring out your home air purifier—but before you turn it on, make sure to clean it first! Proper maintenance is essential for ensuring your family’s breathing health and avoiding secondary pollution. But with so many filters, how do you know which ones to clean? Let’s go through each one in detail.
**Pre-Filter**
The pre-filter is usually the outermost layer of the filter and is easy to identify. Its main function is to trap large particles like dust and hair. Fortunately, this filter can be washed. You can use a damp cloth or a vacuum cleaner to remove dirt before washing it thoroughly. Make sure it’s completely dry before reinserting it into the purifier.
**Product Recommendation: Samsung KJ350F-M3035WM Air Purifier**
The Samsung KJ350F-M3035WM features four layers of filtration that effectively remove dust, hair, formaldehyde, and other airborne pollutants. Its forward airflow design allows for quick purification, and the unit can be mounted on the wall to save space. The smart dual sensor system provides real-time air quality updates via color indicators, while remote control via a mobile app adds convenience.
**Odor-Removing Filter**
This filter is designed to adsorb gases and odors from the air. There are two types: washable and non-washable. Always check the manual before cleaning. If it's not washable, use a vacuum to remove dust and place it in a well-ventilated area. If it is washable, gently rinse it and let it air dry—never expose it to direct sunlight.
**Product Recommendation: 3M KJEA4187-MC Air Purifier**
The 3M KJEA4187-MC includes a triple filtration system with HEPA and activated carbon, offering physical filtration without the risk of secondary pollution. Its advanced activated carbon technology efficiently removes harmful substances like formaldehyde and toluene. With built-in Wi-Fi, users can monitor and adjust air quality settings remotely via a smartphone app.
**Formaldehyde Removal Filter**
This type of filter is typically made of activated carbon and is not washable. Water exposure can reduce its effectiveness. It’s best to replace it every six months or as recommended by the manufacturer to maintain optimal performance.
**Product Recommendation: Lake KJ703-F Air Purifier**
The Lake KJ703-F offers strong formaldehyde removal with a CADR value of 100m³/h and a CCM value of up to 3000mg. It uses a three-in-one purification system that rapidly adsorbs formaldehyde. Its Japanese-imported HEPA filter ensures high efficiency and low resistance, capturing fine particulates effectively. A built-in air quality sensor automatically adjusts settings for better sleep comfort.
**HEPA Filter**
As the core component of an air purifier, the HEPA filter is not washable. Although some manufacturers claim otherwise, we strongly advise against washing it, as it can damage the fibers and reduce effectiveness. Replace it according to usage and manufacturer guidelines.
**Product Recommendation: Honeywell KJ300F-PAC1101W Air Purifier**
The Honeywell KJ300F-PAC1101W is ideal for rooms up to 21–36 m², with a CADR value of 305m³/h. It combines a triple filtration system with HiSiv technology to capture and decompose harmful gases like TVOC and formaldehyde. Its unique airflow design promotes even distribution, and the app alerts users when it’s time to replace the filter.
**Electrostatic Dust Collector**
Some purifiers use electrostatic technology instead of filters. These units don’t require frequent replacements but need regular cleaning. After use, wipe the collector and allow it to dry completely before using again. Never use it while still wet to avoid safety hazards.
**Product Recommendation: Dasong KJFC230A Air Purifier**
The Dasong KJFC230A uses CEP technology, which breaks down pollutants using plasma generated by corona discharge. This filter-free design eliminates the risk of bacterial buildup and secondary pollution. Its sleek, compact design makes it easy to move and operate, with a user-friendly top panel for simple controls.
**Conclusion**
Proper maintenance of your air purifier is crucial for both performance and safety. Understand which filters can be cleaned and which should be replaced. Many modern purifiers come with filter replacement reminders, making it easier to keep your air clean and healthy. Regular checks and care will ensure your purifier works efficiently and keeps your home environment safe.
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